add env bootstrap script

bootstrap_env.sh

@@ -0,0 +1,59 @@
+#!/bin/bash
+
+die () {
+    if [ $# -gt 0 ]; then
+        echo >&2 "$@"
+    fi
+    exit 1
+}
+
+function version_LT() {
+    test "$(echo "$@" | tr " " "\n" | sort -rV | head -n 1)" != "$1";
+}
+
+SUDO=sudo
+
+install_linux_packages() {
+    ubuntu_release=$(lsb_release -r | cut -f 2)
+
+    apt_packages="g++ git automake libtool libgc-dev bison flex libfl-dev \
+		  libgmp-dev libboost-dev libboost-iostreams-dev libboost-graph-dev \
+		  libboost-system-dev libboost-filesystem-dev \
+		  pkg-config python python-scapy python-ipaddr tcpdump cmake"
+
+    echo "Need sudo privs to install apt packages"
+    $SUDO apt-get update || die "Failed to update apt"
+    $SUDO apt-get install -y $apt_packages || die "Failed to install needed packages"
+
+}
+
+
+function install_protobuf() {
+    tmpdir=$(mktemp -d)
+    echo "Using $tmpdir for temporary build files"
+
+    echo "Checking for and installing protobuf"
+    if ! `pkg-config protobuf` || version_LT `pkg-config --modversion protobuf` "3.0.0"; then
+	pushd $tmpdir
+	git clone https://github.com/google/protobuf
+	cd protobuf
+	git checkout tags/v3.2.0
+	git submodule update --init --recursive
+	./autogen.sh && \
+	    ./configure && \
+	    make && \
+	    $SUDO make install && \
+	    $SUDO $LDCONFIG || \
+		die "Failed to install protobuf"
+	cd ../
+	/bin/rm -rf protobuf
+	PI_clean_before_rebuild=true
+	popd # tmpdir
+    fi
+
+    rm -rf $tmpdir
+}
+
+
+install_linux_packages
+install_protobuf